A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6240-00-703-6614
NSN 6145-01-529-3765
NSN 6105-01-595-5868
NSN 5930-00-679-9942
NSN 6135-01-238-2878
NSN 6320-01-576-6310
NSN 5930-00-920-6734
NSN 6145-00-577-8480
NSN 6620-00-280-2874
NSN 6110-01-648-9694
NSN 6135-01-142-6456
NSN 5960-00-608-6711